Platform Username Guides
Check username availability across popular platforms. Each guide includes platform-specific rules, tips, and instant availability checking.
Browse by Category
dev(3 platforms)
CSDN
CSDN is a leading developer-focused community platform with millions of users sharing knowledge and coding expertise. Ensuring your desired username is available helps establish your unique presence and personal brand in this thriving tech community.
Gitee
Gitee is a popular Git-based code hosting and collaboration platform widely used by developers in China and worldwide. With its growing user base, securing a unique and memorable username on Gitee is essential for establishing your online developer identity. Checking username availability helps avoid conflicts and ensures your personal or project brand stands out.
GitHub
GitHub is a leading platform for developers to host and collaborate on code repositories with millions of users worldwide. Checking username availability is essential to establish a unique and professional identity for your projects and collaborations on GitHub.
social(6 platforms)
Facebook is one of the largest social networking platforms with billions of active users worldwide. Creating a unique username is essential for personal branding and easy recognition. Checking username availability helps you claim a distinct identity on facebook and avoid duplicates.
Instagram is a popular social media platform with over a billion active users worldwide, allowing sharing of photos, videos, and stories. Checking username availability is essential to secure a unique identity and enhance your personal or brand presence on Instagram.
Tiktok
Tiktok is a leading social media platform with over a billion active users worldwide, known for its short-form video content and viral trends. Securing a unique username on Tiktok is essential for personal branding and easy discoverability among millions of users.
V2ex
V2ex is a popular social platform known for its active tech-savvy community and diverse discussion topics. With millions of users worldwide, having a unique username is essential for personal branding and seamless interaction. Checking username availability helps you claim your identity before others do.
Weibo is a popular Chinese social media platform with hundreds of millions of active users. Securing your preferred username on Weibo helps establish your brand or personal presence, avoiding confusion or impersonation. Checking username availability ensures you can get a unique handle that represents you effectively.
X
X is a leading social platform with millions of users worldwide, offering real-time communication and engagement. Checking username availability on X is crucial to ensure your unique identity and brand presence on this highly popular network.